From mboxrd@z Thu Jan  1 00:00:00 1970
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Subject: Re: [PATCH 4/9] Doc/DT: Add DT binding documentation for HDMI
	Connector
Date: Fri, 28 Feb 2014 16:06:12 +0000
Message-ID: <20140228160612.GR21483@n2100.arm.linux.org.uk>
References: <1393590016-9361-1-git-send-email-tomi.valkeinen@ti.com>
	<1393590016-9361-5-git-send-email-tomi.valkeinen@ti.com>
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To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: devicetree@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, Andrzej Hajda <a.hajda@samsung.com>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
List-Id: devicetree@vger.kernel.org

On Fri, Feb 28, 2014 at 02:20:11PM +0200, Tomi Valkeinen wrote:
> Add DT binding documentation for HDMI Connector.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Reviewed-by: Archit Taneja <archit@ti.com>
> ---
>  .../devicetree/bindings/video/hdmi-connector.txt   | 23 ++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/video/hdmi-connector.txt
> 
> diff --git a/Documentation/devicetree/bindings/video/hdmi-connector.txt b/Documentation/devicetree/bindings/video/hdmi-connector.txt
> new file mode 100644
> index 000000000000..5d25f6a432bb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/video/hdmi-connector.txt
> @@ -0,0 +1,23 @@
> +HDMI Connector
> +==============
> +
> +Required properties:
> +- compatible: "hdmi-connector"
> +
> +Optional properties:
> +- label: a symbolic name for the connector
> +
> +Required nodes:
> +- Video port for HDMI input
> +
> +Example
> +-------
> +
> +hdmi0: connector@1 {
> +	compatible = "hdmi-connector";
> +	label = "hdmi";
> +
> +	hdmi_connector_in: endpoint {
> +		remote-endpoint = <&tpd12s015_out>;
> +	};
> +};

It seems rather weird to have DVI connectors having an optional I2C
property, but HDMI (which augments DVI) not having that as at least an
optional property.

I can quite well see the iMX HDMI support needing an i2c bus here.

Also, HDMI has two connector standards - type A and type B, much like
the single vs dual link of DVI.  Again, DRM exposes this to userspace.

-- 
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.